Samsung SH09AI8R User manual

INDOOR UNIT
SH09AI8R
SH09AI8V
OUTDOOR UNIT
SH09AI8RX
SH09AI8VX
SERVICE Manual
CONTENTSAIR CONDITIONER
1. Product Specifications
2. Operating Instructions
3. Disassembly and Reassembly
4. Refrigerating Cycle Diagram
5. Set Up the Model Option
6. Troubleshooting
7. Exploded Views and Parts List
8. Block Diagram
9. PCB Diagram
10. Wiring Diagram
11. Schematic Diagram
ROOM AIR CONDITIONER
DB98-17813(1)_co 04/2/23 10:33 AM Page 3

1Samsung Electronics
1. Product Specifications
1-1 Table
Model
Item
SH09AI8R/SH09AI8V
Type
Cooling kW
Heating
Dehumidifying |/h
Air Volume Cooling m3/min
Heating
Noise Cooling dB
( ):EUROVENT Heating
Energy Efficiency Ratio Cooling
Heating W/W
Power V-Hz
Power Consumption Cooling W
Heating
Operating Current Cooling A
Heating
Power Factor Cooling %
Heating
Starting Current A
Length m
Power Cord Number of Core Wire
Capacity A
Outer W x H x D mm
Dimension inch
Weight kg
Refrigerant Pipe Liquid mm x L(m)
GAS mm x L(m)
Drain Hose D(mm)
Type
Compressor Motor Type
Rated Output
Type
Blower Motor Type
Rated Output W
Heat Exchanger
Refrigerant Control Unit
Freezer Oil Capacity cc
Refrigerant to Change(R410A) g
Protection Device(OLP)
Cooling Test Condition
Maximum Operation Condition
Wall-mounted
2.70
2.90
1.4
6.4 24
7.4 24
44(58) 52(61)
44(58) 52(61)
3.03
3.41
1-220 / 240-50
890
850
3.9
3.8
98.7
99.9
21.0
-
-
250V-10 / 16A
760 x 410 x 147 695 x 530 x 280
29.9 x 16.1 x 5.8 27.4 x 20.9 x 11.0
15 28.0
ø6.35 x 7
ø9.52 x 7
ø21
Rotary
--
--
Turbo-Fan Propeller
steel steel
60 25
2ROW 12STEP 1ROW 24STEP
CAPILLARY TUBE
280
590
RBC12054-12500
Size
Power
Perfor-
mance
Indoor unit Outdoor unit
INDOOR UNIT : DB27˚C WB19˚C OUTDOOR UNIT : DB35˚C WB24˚C
INDOOR UNIT : DB32˚C WB23˚C OUTDOOR UNIT : DB43˚C WB26˚C
DB98-17813(1)_1 04/2/23 10:27 AM Page 1

Samsung Electronics2
1-2 Pressure Graph
10
9
8
7
3
20 30
Outdoor drybulb temperature [deg C]
Low Pressure [kg/cm2G]
40
30.6/22.5
27/19
21.5/14.6
DB98-17813(1)_1 04/2/23 10:27 AM Page 2

3Samsung Electronics
2. Operating Instructions
2-1 The Feature of Key in remote control
Fan speed adjustment button.
Each time you press this button, FAN SPEED is changed in the following order.
Temperature adjustment button(DOWN).
To decrease the temperature by the pressing the temperature button.
FUNCTION OF KEY
On/Off button.
Press the button to stop or run the air conditioner.
NAMED OF KEYNo
1
2
3
4
5
6
7
8
Swing button.
It adjusts the airflow to upward and downward, left and right.
Temperature adjustment button(UP).
To increase the temperature by the pressing the temperature button.
(On/Off)
(UP)
(DOWN)
Low Medium High
Automatic(rotated : )
Sleep button.
The sleep timer can be used when you are cooling or heating your room to switch the
air conditioner off automatically after a period of 6 hours.
Turbo button.
The air conditioner cools or heats the room as quickly as possible.
After 30minutes, the air conditioner is reset automatically to the previous mode.
Mode selection button.
Each time you press this button
Mode is changed in the following order : Auto Mode : Fan Only
: Cool Mode : Heat Mode
: Dry Mode
Energy saving button.
If you wish to save energy when using your air conditioner, select the Energy saving
mode with the button.
DB98-17813(1)_1 04/2/23 10:28 AM Page 3

Operating Instructions
Samsung Electronics4
Digital On/Off button.
If you want to turn off the display during operation press the button.
Off Timer button.
The Off Timer enables you to switch off the air conditioner automatically after
a given period of time that is from 30 minutes to 24 hours.
To set the operating time, press the button one or more times until the required
time display.
FUNCTION OF KEY
Anion button.
Press the button to generate ion from the air conditioner.
NAMED OF KEYNo
9
10
11
12
13
On Timer button.
The On Timer enables you to switch on the air conditioner automatically after
a given period of time that is from 30 minutes to 24 hours.
To set the operating time, press the button one or more times until the required
time display.
Timer Set/Cancel button.
After setting On Timer or Off Timer, press the button to set it completely.
And press the button again to cancel On Timer or Off Timer set.
DB98-17813(1)_1 04/2/23 10:28 AM Page 4

5Samsung Electronics
Operating Instructions
1. AUTO MODE : In this mode, operation mode(COOL,
HEAT) is selected automatically by the room temperature
of initial operation.
∆T= -1°C, -2°C, 0°C, +1°C, +2°C
∆T is controlled by setting temperature up/down key of
remote control
2. COOL MODE : The unit operates according to the
difference between the setting and room temperature.
(18°C~30°C)
3. HEAT MODE : The unit operates according to the
difference between the setting and room tempera-
ture.(16°C~30°C)
*Prevention against cold wind : In order to prevent the
cool air from flowing out at the heat mode, the indoor fan
does not operate or operates very slowly in the
following cases. At this time, the indoor heat exchanger
will be preheating.
- For 3~5 minutes after the initial operation
- For deicing operation
- The operation of an indoor fan in accordance with
the temperature of an indoor heat exchanger
*High temperature release function : It is a function to
detect an outdoor overload by the sensor of an indoor
heat exchanger and to turn the outdoor fan or the
compressor ON/OFF for safety.
*Deice : Deicing operation is controlled by indoor unit's
heat exchanger temperature and accumulating time of
compressor's operation.
Deice ends by sensing of the processing time by deice
condition.
4. DRY MODE : Has 3 states, each determined by room
temperature.
The unit operates in DRY mode.
*Compressor ON/OFF Time is controlled
compulsorily(can not set up the fan speed, always
breeze).
*Protective function : Low temperature release.
(Prevention against freeze)
5. TURBO MODE : This mode is available in AUTO, COOL,
HEAT, DRY, FAN MODE.
When this button is pressed at first, the air conditioner is
operated “powerful”state for 30 minutes regardless of the
set temperature, room temperature.
When this button is pressed again, or when the operating
time is 30 minutes, turbo operation mode is canceled and
returned to the previous mode.
*But, if you press the TURBO button in DRY or FAN
mode that is changed with AUTO mode automatically.
6. SLEEP MODE : Sleep mode is available only in COOL or
HEAT mode.
The operation will stop after 6 hours.
*In COOL mode : The setting temperature is automatical-
ly raised by 1°C each 1hour When the temperature
has been raised by total of 2°C, that tempera-
ture is maintained.
*In HEAT mode : The setting temperature is automatically
dropped by 1°C each 1hour.
When the temperature has been dropped by total of 2°C,
that temperature is maintained.
7. FAN SPEED : Manual (3 step), Auto (4 step)
Fan speed automatically varies depending on both the
difference between setting and the room temperature.
8. COMPULSORY OPERATION :
For operating the air conditioner without the remote
control.
*The air conditioner starts up in the most suitable mode
for the room temperature:
Room Temp
Tr≥21°C+∆T
21°C +∆T>Tr
Operation Type
Cool Operation (Set Temp:24˚C+∆T)
Heat Operation (Set Temp:22˚C+∆T)
2-1-1 Name & Function of Key in remote control
below 28˚C
28˚C~below 34˚C
34˚C~below 40˚C
above 40˚C
The temperature of
indoor heat exchanger Indoor fan speed
off
LL Speed
L Speed
Setting Speed
Room Temperature
Less than 21˚C
21˚C or above
Operating Mode
Heat
Cool
Temperature Setting
22˚C approx.
24˚C approx.
DB98-17813(1)_1 04/2/23 10:28 AM Page 5

Operating Instructions
Samsung Electronics6
9. SWING : BLADE-H is rotated vertically by the stepping
motor.
*Swing Set : Press the button under the remote
control is displayed on LCD the and the blades
move up and down, left and right. If the one more time
press the button, blades location is stop.
10. SETTING THE ON/OFF TIMER. :
*ON TIMER : The On Timer enables you to switch on the
air conditioner automatically after a given period of time.
You can set the period of time from 30 minutes to 24
hours.
*OFF TIMER : The Off Timer enables you to switch off
the air conditioner automatically after a given period of
time. You can set the period of time from 30 minutes to
24 hours.
11. GENERATING ANION :
The air conditioner can generate anion with an ionizer in
the indoor unit.
12. SELF DIAGNOSIS
13. BUZZER SOUND : Whenever the On/Off button is
pressed or whenever change occurs to the condition
which is set up or select, the compulsory operation mode,
buzzer is sounded "beep".
Indoor unit room temperature sensor
error (open or short)
OFF E1
OFF E2
OFF E3
OFF E6
All lamp
blinking All lamp blinking
Indoor unit heat exchanger
temperature sensor error(open or short)
Indoor FAN MOTOR error :
Keep the RPM value 450 below for
15 seconds
Error in option
In case of No option set-up
In case of option data error
EEPROM error
Error Mode
Operation Off Operation On
DISPLAY 7-SEGMENT
Remark
DB98-17813(1)_1 04/2/23 10:28 AM Page 6

7Samsung Electronics
2-2 Replace PCB Model option
2-2-1 Replace PCB model option
No
Yes
Remove power cord
Replace the PCB module
Check the connection and plug in
Refer to set up the Model option(16~17page)
Replace another PCB
Does all display lamp blink?
DB98-17813(1)_1 04/2/23 10:28 AM Page 7

Samsung Electronics8
3. Disassembly and Reassembly
3-1 Indoor Unit
Stop operation of the air conditioner and remove the power cord before repairing the unit.
No Parts Procedure Remark
1 Front Grille 1) Stop the air conditioner and shut off the
main power.
2) Hold the knobs on both sides of the Top
Cover. Then, pull the cover toward you and
lift it up to separate it from the main body.
(Please push down the bottom cover for
disassembly.)
3) Unscrew the Main PCB Cover.
4) Loosen the Panel fixing screws on both
sides of the bottom Panel and pull down the
cover and separate the projection from the
groove.
DB98-17813(1)_1 04/2/23 10:28 AM Page 8

Disassembly and Reassembly
9Samsung Electronics
No Parts Procedure Remark
●Loosen the pipe bush screws.
(Pull down the cover and separate the
projection from the groove.)
5) Separate the 2 grille driving Motor
Connectors and one receiving sensing
connector from the main PCB.
<Main PCB Connector Illustration Drawing>
No Connector Parts
!Fan Motor(L)
@Fan Motor(R)
#Wing Motor(L)
$Wing Motor(R)
%Wing Motor(B)
^Room Temperature/Piping Sensor
&Grille Driving Motor(L)
*Grille Driving Motor(R)
(Mark/Receiver
)Anion
!@ #$ )
^
%&*(
DB98-17813(1)_1 04/2/23 10:28 AM Page 9

Disassembly and Reassembly
Samsung Electronics10
No Parts Procedure Remark
2MAIN PCB
6) Loosen the 4 fixing screws.
7) Detach the Panel.
●Cautions for Panel Assembly
●- Put the separated connectors in the right
position respectively.
●- Please avoid suppression of wires or
deviation of power cords and cross room
power connection cables. (For details, refer
to the Indoor Unit Connection
Cable Installation.)
1) Loosen the fixing screws on
both sides of the Electric Component Box.
2) Detach all the connectors for the main PCB.
●Cautions for Connectors Assembly
●Be sure to put connectors in the right
position.
3) Loosen the fixing screws on both sides of
the Electric Component Box.
4) Loosen the grounding screws.
DB98-17813(1)_1 04/2/23 10:28 AM Page 10

Disassembly and Reassembly
11Samsung Electronics
No Parts Procedure Remark
3
4
5
Basket
Heat Exchanger
Fan
&
Motor
1) Loosen the 3 fixing screws.
2) Detach the Basket.
●Cautions for Basket Assembly
●Be sure to check if the projection on both
sides was positioned completely in the
groove.
1) Loosen the 3 Heat Exchanger fixing
screws.
2) Lift up the Heat Exchanger slightly for
disassembly.
●Cautions for Heat Exchanger Assembly
●Never allow the insulating materials to be
damaged or the piping to be deformed
during disassembly and assembly.
1) Loosen the 6 cover screws.
DB98-17813(1)_1 04/2/23 10:28 AM Page 11

Disassembly and Reassembly
Samsung Electronics12
No Parts Procedure Remark
2) Loosen the bottom wing screws to detach
the assembly. (one fixing screw)
3) Detach the Fan fixing bolts.
(with a M3 wrench)
4) Loosen the 3 Fan Motor fixing screws.
●Cautions for Motor Assembly
●- Do not miss the Motor anti-vibration
rubber and washer.
●- Do not miss the Motor wire fixing cover.
5) Detach the Negative Ionizer.
●Cautions for Ionizer Assembly
●Never allow the deformation of the
Negative Ionizer pin.
DB98-17813(1)_1 04/2/23 10:28 AM Page 12

13Samsung Electronics
3-2 Outdoor Unit
No Parts Procedure Remark
1 Common Work 1) Loosen 2 fixing screws and separate the
Cover Valve.
2) Detach the connection wire from the
Terminal Block.
3) Loosen 4 fixing screws and detach the
Cabinet Front.
4) Loosen 2 fixing screws and detach the
Cabinet-Side LF.
5) Loosen 2 fixing screws of the Cabinet-Side
RH.
6) Loosen 2 fixing screws and detach the
Bar Steel.
DB98-17813(1)_1 04/2/23 10:28 AM Page 13

Disassembly and Reassembly
Samsung Electronics14
No Parts Procedure Remark
2
3
4
Fan
&
Motor
Heat Exchanger
Compressor
1) Detach the connection wire of the Motor
Fan.
2) Remove the Nut Flange.
(Turn to the clockwise)
3) Detach the Fan.
4) Loosen 4 fixing screws to detach
the Motor.
5) Loosen 4 fixing screws and detach the
Motor Bracket from the Base.
1) Loosen 2 fixing screws of left and right
side.
2) Disassemble the inlet and outlet pipe by
welding.
3) Detach the Heat Exchanger.
1) Open the Terminal Cover of Compressor
and unscrew the Connection Terminal.
2) Disassemble the inlet and outlet pipe of
Compressor by welding.
3) Loosen 3 fixing bolts of the lower part.
4) Detach the Compressor.
DB98-17813(1)_1 04/2/23 10:28 AM Page 14

15Samsung Electronics
4. Refrigerating Cycle Diagram
Indoor Unit Outdoor Unit
T1
T2
2-Way valve
3-Way valve
Gas side
Heat
Exchanger
(Evaporator)
Heat
Exchanger
(Evaporator)
Liquid side
Capillary tube
4-Way valveCooling
Heating
Gas leak check point
Compressor
Turbo Fan
Propeller Fan
DB98-17813(1)_1 04/2/23 10:29 AM Page 15

Samsung Electronics16
5. Set Up the Model Option
5-1 Setting Option Setup Method
Option No. : (SH09AI8R/SH09AI8V)
Step 1 : Enter the Option Setup mode.
1st Take out the batteries of remote control.
2nd Press the temperature button simultaneously and
insert the battery again.
3rd Make sure the remocon display shown as .
Step 2 : Enter the Option Setup mode and select your option according to the following procedure.
3 2
1
4
5 6
1
2
The default value is .
Otherwise, push the button to .
Every time you push the button, the display panel reads or
repeatedly.
✳Setting is not required if you must
a value which has a default.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
3
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
4
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
5
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
6
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
DB98-17813(1)_1 04/2/23 10:30 AM Page 16

Set Up the Model Option
17Samsung Electronics
Step 3 : Upon completion of the selection, check you made right selections.
Press the Mode Selection key, to set the display part to and check the display part.
The display part shows .
Press the Mode Selection key, to set the display part to and check the display part.
The display part shows .
Step 4 : Pressing the ON/OFF button ( )
When pressing the operation ON/OFF key with the direction of remote controller for unit, the sound ''Ding'' or ''Diriring'' is
heard and the OPERATION ICON( ) lamp of the display is flickering at the same time, then the input of option is com-
pleted. (If the diriring sound isn't heard, try again pressing the ON/OFF button.)
Step 5 : Unit operation test-run
First, Remove the battery from the remote controller.
Second, Re-insert the battery into the remote controller.
Third, Press ON/OFF key with the direction of remote controller for set.
7
8
The default value is .
Otherwise, push the button to .
Every time you push the button, the display panel reads or
repeatedly.
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
10
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
9
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
11
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
12
Push the button to set the display panel to .
Every time you push the button, the display panel reads
. . . repeatedly.
9 8
7
10
11 12
✳Setting is not required if you must
a value which has a default.
•Error Mode
1st If all lamps of indoor unit are flickering, Plug out, plug in battery again and press ON/OFF key to retry.
2nd If the unit is not working properly or all lamps are continuously flickering after setting the option code, see if the correct option code is
set up for its model.
DB98-17813(1)_1 04/2/23 10:31 AM Page 17

Samsung Electronics18
- Power failure or plugged-out?
- Wasn't the reserved operation period over?
- Take out the batteries of remote control and put them in it one minute later.
Then put the remote control in operation again.
- Plug out and plug in 10 seconds later.
- Isn't the dust collecting filter clogged with dust or stained?
- Isn't there any direct ray or obstacle to the outdoor unit?
- Is the temperature setting value too high? If so, please turn it down.
- Isn't the air conditioner in wind-only operation?
- Please ventilate the room because the smell penetrated into the wall or furniture is not
coming out as the air conditioner begins operating.
- Check if the dust collecting filter is stained.
- Aren't batteries dead?
- Aren't batteries wrongly positioned?
- Isn't the indoor unit sensor covered?
- Isn't the electric wave blocked by neon-signs or electronic fluorescent lamps?
- Is the operation mode in one of AUTO, DEHUMID, or TURBO?
Then, no further control is required because the air volume will be automatically controlled.
- Please return to the COOL/WIND mode to recheck the condition.
- Please check if you pressed the OK/CANCEL button after you set the reservation time.
- Isn't the operation mode in TURBO?
Then, no further control is required because the air volume will be automatically controlled.
- Please return to the COOL mode to recheck the condition.
- Check the refrigerant pressure. (to check refrigerant leak)
- Is the indoor unit so installed that water is smoothly drained?
- Aren't the drain outlet and hose clogged?
- Please re-vacuum and recharge refrigerant.
(Insufficient refrigerant distribution may prevent water from forming on the evaporator.)
Unable to control
air volume
Unable to reserve
Unable to set
temperature
Water leak
(from indoor unit)
Symptoms Reasons
Inoperative
No cool wind
Strange smell
Inoperative remote
control
6. Troubleshooting
Check the basic items first to judge if the problem was caused by breakdown or misuse. If none of the basic items are related to the
problem, please scrutinize the machine according to the 'Breakdown Diagnosis by Symptoms' method.
6-1 Basic Breakdown Diagnosis Items
1. Is power supply right?
The power supply shall be within ±10% of the input voltage.
Otherwise, the machine may fall in abnormal operation.
2. Is the indoor unit connected with the outdoor unit?
3. The following symptoms are not categorized in the breakdown.
DB98-17813(1)_1 04/2/23 10:31 AM Page 18

19Samsung Electronics
6-2 Trouble check in the initial status
6-2-1 Diagnosis and marking of the part in trouble.
Please check the air conditioner operation status and write the check result in the chart in the room.
6-2-2 Operation with abnormal motion
Indoor unit Temperature Sensor Error(SHORT/OPEN)
Indoor unit Piping Sensor Error(SHORT/OPEN)
EEPROM Error(Option Memory)
- Option Error
- Option Unselected
- Option Data Error
7-SEGMENT Mark Error Part
E1
E2
E6
All Lamp Off
No response from the
remote control opera-
tion signal.
Unable to operate the
outdoor unit
1) Plug out and plug in 5 seconds
later.
1) Press the TURBO button with the
remote control.
2) In 3 minutes, check the voltage
between the indoor unit terminal
block N and L.
Able to operate the
remote control
Unable to operate
the remote control
AC198V ~ AC242V
No power source
displayed.
OK
Press the AUTO button in the indoor
unit.
(1) If it operates, the remote control
and indoor unit receiver are in
trouble.
(2) If not, the indoor unit is in trouble.
Problem with the outdoor unit or PCB
Problem with the relay (RY71) or PCB
NO Abnormal condition Inspection Initial Diagnosis
1
2
The motor RPM is not sensible because the indoor fan motor has no feedback sensor.
Therefore, there is no fan motor error.
DB98-17813(1)_1 04/2/23 10:31 AM Page 19